Page 8 of 88

Adjusting the engine idling speed ....................6-14
Adjusting the throttle cable free play ................6-15
Adjusting the valve clearance ..........................6-16
Tires .................................................................6-16
Spoke wheels ..................................................6-18
Adjusting the clutch lever free play ..................6-19
Adjusting the brake lever free play...................6-20
Adjusting the brake pedal position and
free play .........................................................6-21
Adjusting the rear brake light switch ................6-22
Checking the front brake pads and
rear brake shoes ............................................6-23
Checking the brake fluid level ..........................6-24
Changing the brake fluid ..................................6-25
Drive chain slack ..............................................6-25
Lubricating the drive chain ...............................6-26
Checking and lubricating the cables ................6-27
Checking and lubricating the throttle grip
and cable .......................................................6-28
Checking and lubricating the brake and
shift pedals .....................................................6-28
Checking and lubricating the brake and
clutch levers ...................................................6-29
Checking and lubricating the sidestand ...........6-29
Lubricating the rear suspension .......................6-29
Checking the front fork .....................................6-30
Checking the steering ......................................6-30Checking the wheel bearings ...........................6-31
Battery..............................................................6-31
Replacing the fuse ...........................................6-34
Replacing the headlight bulb ...........................6-35
Replacing a turn signal light bulb .....................6-36
Replacing the tail/brake light bulb ....................6-37
Supporting the motorcycle ...............................6-37
Front wheel ......................................................6-38
Rear wheel .......................................................6-39
Troubleshooting ...............................................6-41
Troubleshooting chart ......................................6-42
MOTORCYCLE CARE AND STORAGE .............7-1
Care ...................................................................7-1
Storage ..............................................................7-4
SPECIFICATIONS ...............................................8-1
Conversion table ................................................8-5
CONSUMER INFORMATION ..............................9-1
Identification numbers ........................................9-1
Key identification number...................................9-1
Vehicle identification number .............................9-1
Model label.........................................................9-2
TABLE OF CONTENTS
1
2
3
4
5
6
7
8
9
789
5EK-9-E2 (TW125)<3.3Passport> 5/23/00 9:47 AM Page 6
Page 13 of 88
3-1
EAU00027
INSTRUMENT AND CONTROL FUNCTIONS
1
23
4
5
6
7
8
9
EAU00028
Main switchThe main switch controls the ignition
and lighting systems. The various
main switch positions are described
below.
EAU00036
ON
All electrical systems are supplied
with power, and the engine can be
started. The key cannot be removed.
EAU00038
OFF
All electrical systems are off. The key
can be removed.
EAU00056
Indicator lights
EAU00057
Turn signal indicator light Ò5Ó
This indicator light flashes when the
turn signal switch is pushed to the left
or right.
EAU00061
Neutral indicator light ÒNÓ
This indicator light comes on when
the transmission is in the neutral
position.1. Turn indicator light Ò5Ó
2. High beam indicator light Ò&Ó
3. Neutral indicator light ÒNÓ
EAU00063
High beam indicator light Ò&Ó
This indicator light comes on when
the high beam of the headlight is
switched on.
OFFON
3
12
5EK-9-E2 (TW125)<3.3Passport> 5/23/00 9:47 AM Page 11
Page 14 of 88
3-2
INSTRUMENT AND CONTROL FUNCTIONS
1
23
4
5
6
7
8
9
EAU01087
Speedometer unit The speedometer unit is equipped
with a speedometer, an odometer
and a tripmeter. The speedometer
shows riding speed. The odometer
shows the total distance traveled.
The tripmeter shows the distance
traveled since it was last set to zero
with the reset knob. The tripmeter
can be used to estimate the distance
that can be traveled with a full tank of
fuel. This information will enable you
to plan future fuel stops.1. Speedometer
2. Odometer
3. Trip odometer
4. Reset knob
EAU00118
Handlebar switches
EAU00121
Dimmer switch
Set this switch to Ò&Ó for the high
beam and to Ò%Ó for the low beam.1. Lights switch
2. Dimmer switch
3. Turn signal switch
4. Horn switch Ò*Ó
NOTE:
Only for the German model equipped
with a speed limiter:
The speed limiter prevents the motor-
cycle from exceeding a riding speed
of 80 km/h.
4
23 1
41
2
3
5EK-9-E2 (TW125)<3.3Passport> 5/23/00 9:47 AM Page 12
Page 15 of 88

3-3
INSTRUMENT AND CONTROL FUNCTIONS
1
23
4
5
6
7
8
9
EAU00127
Turn signal switch
To signal a right-hand turn, push this
switch to Ò6Ó. To signal a left-hand
turn, push this switch to Ò4Ó. When
released, the switch returns to the
center position. To cancel the turn
signal lights, push the switch in after
it has returned to the center position.
EAU00129
Horn switch Ò*Ó
Press this switch to sound the horn.
EAU00134
Light switch
Set this switch to Ò
'
Ó to turn on
the auxiliary light, meter lighting and
taillight. Set the switch to Ò:Ó to turn
on the headlight also.
EAU00143
Start switch Ò,Ó
Push this switch to crank the engine
with the starter.
EC000005
cCSee page 5-1 for starting instruc-
tions prior to starting the engine.
12
EAU00138
Engine stop switch
Set this switch to Ò$Ó to stop the
engine in case of an emergency,
such as when the motorcycle over-
turns or when the throttle cable is
stuck.1. Engine stop switch
2. Start switch Ò,Ó
5EK-9-E2 (TW125)<3.3Passport> 5/23/00 9:47 AM Page 13
Page 67 of 88
6-36
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
56
7
8
9 6. Install the bulb cover, and then
connect the coupler.
7. Install the headlight unit by
installing the bolts.
8. Install the cowling.
9. Have a Yamaha dealer adjust
the headlight beam if necessary.
EAU03497
Replacing a turn signal light
bulb1. Remove the turn signal light lens
by removing the screw.
2. Remove the defective bulb by
pushing it in and turning it coun-
terclockwise.
3. Insert a new bulb into the socket,
push it in, and then turn it clock-
wise until it stops.
4. Install the lens by installing the
screw.1. Screw
2. Lens
3. bulb
1
2
3
ECA00065
cCDo not overtighten the screw, oth-
erwise the lens may break.
5EK-9-E2 (TW125)<3.3Passport> 5/23/00 9:47 AM Page 65
Page 82 of 88
SPECIFICATIONS
1
2
3
4
5
6
78
9
8-4 Headlight bulb typeIncandescence
Bulb voltage, wattage ´quantity
Headlight 12 V, 45/40 W ´1
Tail/brake light 12 V, 5/21 W ´1
Front turn signal light 12 V, 21 W ´2
Rear turn signal light 12 V, 21 W ´2
Marker light 12 V, 4 W ´1
Meter lighting 12 V, 3.4 W ´1
Neutral indicator light 12 V, 3.4 W ´1
High beam indicator light 12 V, 3.4 W ´1
Turn indicator light 12 V, 3.4 W ´1
Fuse20 A
5EK-9-E2 (TW125)<3.3Passport> 5/23/00 9:47 AM Page 80